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<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Mapguide 2.6.0.8316 64bit</span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Windows Server 2008 R2</span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Ajax</span></font><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"> Viewer</span></font></p>

<pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black"> </span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black">I am trying to troubleshoot a server installation and receiving the following error when clearing a selection:</span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black"> </span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black"><2015-01-21T10:21:59>     11236    Ajax Viewer      10.0.0.128        Anonymous</span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black"> Error: Argument is null.</span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black"> StackTrace:</span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black">  - MgRenderingServiceHandler.ProcessOperation() line 83 file c:\working\build_area\mapguide\2.6.0\x64\mgdev\server\src\services\rendering\RenderingServiceHandler.cpp</span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black">  - MgOpQueryFeatures.Execute() line 125 file c:\working\build_area\mapguide\2.6.0\x64\mgdev\server\src\services\rendering\OpQueryFeatures.cpp</span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black">  - MgServerRenderingService.QueryFeatures() line 853 file c:\working\build_area\mapguide\2.6.0\x64\mgdev\server\src\services\rendering\ServerRenderingService.cpp</span></font></pre><pre style="background:white"><font size="1" color="black" face="Courier New"><span style="font-size:9.0pt;color:black">  - MgServerRenderingService.RenderForSelection() line 1187 file c:\working\build_area\mapguide\2.6.0\x64\mgdev\server\src\services\rendering\ServerRenderingService.cpp  </span></font></pre>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">This map was working on a Windows 7 machine but since moving
it to the Windows Server 2008 R2 machine I am having problems related to making
selections.  Uninstalled previous version, 2.5.1, which was working well
before installing 2.6</span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Does anyone have ideas on what might be wrong?</span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Thanks,</span></font></p>

<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>

<p class="MsoNormal"><font size="3" color="#0000a0" face="Arial"><span style="font-size:12.0pt;font-family:Arial;color:#0000a0">Gregory B. Neff</span></font></p>

<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">District Engineer</span></font></p>

<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">Cottonwood Improvement District</span></font></p>

<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">8620 Highland Drive</span></font></p>

<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">Sandy</span></font><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">, Utah
 84093</span></font></p>

<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">(801) 943-7671</span></font></p>

<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:12.0pt"> </span></font></p>

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